GD32F103 配置timer0输出PWM

编译环境：

库：GigaDevice.GD32F10x_DFP.2.0.2

编译器：KEIL 5.30

芯片：GD32F103C8 

 这句话很重重要，不配置输不出PWM的。

timer_primary_output_config(TIMER0,ENABLE);

 C文件

#include "gd32f10x_libopt.h"

/********************************************************************
Function:beep init
INPUT	:
OUTPUT	:	
NOTE	:   
********************************************************************/
void fun_Beep_init(void)
{
	  timer_oc_parameter_struct timer_ocintpara;
    timer_parameter_struct timer_initpara;
//************************IO config*****************************
    rcu_periph_clock_enable(BEEP_PWM_GPIO_CLK);
    rcu_periph_clock_enable(RCU_AF);

    /*Configure PA8 as alternate function*/
    gpio_init(BEEP_PWM_GPIO_PORT, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, BEEP_PWM_PIN);
  
//************************timer config************************//
/* -----------------------------------------------------------------------
    TIMER0 configuration:
    TIMER0CLK = SystemCoreClock / 108 = 1MH
    TIMER0 channel1 duty cycle = (4000/ 16000)* 100  = 25% 62.5HZ
    ----------------------------------------------------------------------- */


    rcu_periph_clock_enable(RCU_TIMER0);

    timer_deinit(TIMER0);

    /* TIMER0 configuration */
    timer_initpara.prescaler         = BEEP_PWM_PRESCALER;
    timer_initpara.alignedmode       = TIMER_COUNTER_EDGE;
    timer_initpara.counterdirection  = TIMER_COUNTER_UP;
    timer_initpara.period            = BEEP_PWM_PERIOD;
    timer_initpara.clockdivision     = TIMER_CKDIV_DIV1;
    timer_initpara.repetitioncounter = 0;
    timer_init(TIMER0,&timer_initpara);

    /* CH1 configuration in PWM mode1 */
    timer_ocintpara.ocpolarity   = TIMER_OC_POLARITY_HIGH;
    timer_ocintpara.outputstate  = TIMER_CCX_ENABLE;
    timer_ocintpara.ocnpolarity  = TIMER_OCN_POLARITY_HIGH;
    timer_ocintpara.outputnstate = TIMER_CCXN_DISABLE;
    timer_ocintpara.ocidlestate  = TIMER_OC_IDLE_STATE_LOW;
    timer_ocintpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;

    timer_channel_output_config(TIMER0,TIMER_CH_0,&timer_ocintpara);

    /* CH1 configuration in PWM mode1,duty cycle 25% */
    timer_channel_output_pulse_value_config(TIMER0,TIMER_CH_0,3999);
    timer_channel_output_mode_config(TIMER0,TIMER_CH_0,TIMER_OC_MODE_PWM0);
    timer_channel_output_shadow_config(TIMER0,TIMER_CH_0,TIMER_OC_SHADOW_DISABLE);

	timer_primary_output_config(TIMER0,ENABLE);
    /* auto-reload preload enable */
    timer_auto_reload_shadow_enable(TIMER0);
    /* auto-reload preload enable */
    timer_enable(TIMER0);

}

H头文件 

#ifndef _BEEP_H_
#define	_BEEP_H_

void fun_Beep_init(void);
//********************hard define Config*****************************
// PA8 1 timer4 channel1
#define BEEP_PWM_PIN                   GPIO_PIN_8
#define BEEP_PWM_GPIO_PORT             GPIOA
#define BEEP_PWM_GPIO_CLK              RCU_GPIOA

#define BEEP_PWM_PRESCALER            108-1
#define BEEP_PWM_PERIOD               16000-1









#endif 

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原文链接：https://blog.csdn.net/qq_34152804/article/details/118269548